Process of making draft-gear yokes.



A. GOPON Y.

PROCESS OF MAKING DRAFT GEAR YOKES.

APPLICATION FILED MAR. 23, 1914.

Patented Feb. 16, 1915;

ZSHEETS-SHEET 1.

A. COPONY.

PROCESS OF MAKING DRAFT GEAR YOKES.

APPLICATION FILED 111111.23, 1914.

2SHBETS-SHEBT 2.

INVEN TOR.

WITNESSES UNITED sYr TEs eT NT OFFICE.

ALFRED COPONY, OF CHICAGO, iLLINoIs, AssIGNoR 'ro WILLIAM H. MINER, or

' cnrcneo, ILLINoIs. I

' PROCESS OF MAKING- DRAFT-GEAR YOKES.

Specification of Letters Patent. Patented F b 16 1915 I Application filed March as, 1914. Serial 115826304.

a simple process involving few steps for' manufacturing yokes for use in railway draft riggings, which yokes are composed partly of steel castings and wrought iron. x

The invention furthermore consists in the improvements in the steps and novel combinations of the steps of the process herein shown, described or claimed.

In the drawing forming a part of this specification are illustrated the different steps in carrying out my process, all the views being in perspective.

In said drawing, Figure 1 represents a' bar or strap of wrought iron such as is used in carrying out my process. Fig. 2 shows the bar or strap after the first operation thereon in which the center portion is offset laterally from the main portions thereof. Fig. 3 shows the strap of wrought iron bent back upon itself or doubled with an elongated recess in the bend. Fig. 4 shows the next step in the process wherein the inner ends of the strap are bent at right anglesto the main portion thereof, said ends forming one-half of the rear portion of the finished yoke. Fig. 5 shows a piece of wrought iron cut to suitable size which is used as a connecting member or clip, as hereinafter described. Fig. 6 shows the clip after the corner portions thereof have been cut out. Fig. 7 shows the next step in forming the clip wherein the end portions are bent at right angles to the central portion. Fig. 8 shows the clip in its finished form. Fig. 9

. shows one of the steel castings employed in the yoke and Fig. 10 shows the finished yoke wherein two of the wrought iron members have been brought into proper position relatively to each other and the clip secured in place to rigidly connect the wrought iron members and also the steel castings secured to the ends of the arms of the yoke. Figs. 11 to 17, inclusive, illustrate another way of partly of carrying outmyflprocess to form a slightly different form of yoke. Figs. '11, 12,13 and 1-L showing respectively ,the steps in forming the wrought iron..member and corresponding respectively to Figs: 1, 2, 3' and 4;

Fig. 15 showing a' different form of:con-' necting member for the wrought iron straps; 'Fig.. 16 showing one of the steel castings employed; and Fig. 17 showing the finished'yoke wherein the wrought, iron members are firmly and rigidly connected together andthe steel castings arev attached i to the ends of the yoke arms.

Referring now more particularly to Figs. 1 to 10 inclusive,20 denotes a piece of wrought iron out to the proper length which is first operated upon to have the central portion 21 thereof laterally ofi'setrelatively to the main portions 22, 22. The bar is next bent to the shape .shownin Fig. 3 wherein the. portions 22, 22 are brought together and the central portion 21bent to. form the end of the yoke arm and toprovide an elongated slot 23. The rear ends of theportions 22 are next bent at right angles as indicated wrought iron members ofv the form shown in Fig. 4 are provided for each yoke.

In Fig. 5 a wrought iron plate 25 is shown which -first has the corner portions thereof cut out to form a member of the shape shown in Fig. 6, having side wings or arms 26, 26. These wings or flanges 26 are next bent at right angles to the center portion to form a substantially U-shaped member as indicated in Fig. 7. The end portions of the Wing members 26 are next bent at right angles to the form shown at 27 in Fig. 8 so that the clip or connecting member assumes the form of a band. For each yoke, two steel castings are provided, each of which has a longitudinally extending recess 28 sides of the arms of the yoke by inserting the bosses 29 within the recesses 23 as shown in Fig. 10.

an M24 in Fig. 4, it being understood thattwo an note that the thickened portion of the metal The finished yea shown'in Fig'. i0 is so constructed that the Wrought iron members hate the same cross sectional area throughout their entire lengths, including the central portions which are bent around the bosses on the castings.

e e r a m repart yf d F g.

its central portion [121 thereof upset; thereby increasing the thickness but decreasing the width relatively to the end portions 122,

122. The bar is then bent or doubled upon itself to the form shown in Fig. l3,- a recess 123. being provided. .on accouht of the metal hairi lpre'vio'usly been upset, it being also urrounds said recess. The rear or ihner ends of the wrought iron strap are then bent at right angles to the body thereof. to the form shown at 1-24,. Fig. 14;. Two Wrought iron members of the term shown in Fig. l4, are provided for each yoke and to rigidly and permanently connect the same ogether a connecting. member 125 is provided of the form slibwn in Fig. 15., the latter'being punched, "as at 126; for rivets. For each yoke, two steel castings are provided; ach of which is of the form shown in Fig: 16. Each .steel casting. is longitizdinally slotted as shown at 128' and-is provided on .out'er side with an elongated boss 129 surrounding said slot, the bosses 129 corresponding in size and she e. to the recesses 123 formed in the cruise the arms of the yoke. The two wrought iron members for each-yoke, are. connected by means hf the 125 which is pntin theposition-shown 1n g. 17 and riveted to the bent ends. 1% as there shown. The steel castings re also at taolied to ends of the arias oi the yoke,

on'the inner sides thereof, with the bosses "i inserted iii the recesses 123.

It will be noted that the yoke shown in Iii l7 ha s the arms thereof of uniform wi th throughout their entire length all 1 the wrought iron straps are not of am (an "cross section throughout.

. From the preceding description, it will be seen that I have provided a process of manufacturing combined cast steel and wrought iron yokes of few "steps and one which does not require the use of any complicated or ere pensive machinery;

Although I have herein shown and described what I now consider the preferred manner of carrying out my process, yet

it will be understood that changes may be made in the steps of the process without departing from the spirit of the invention and all such changes or variations are conteniplated as come within the scope oi the claim appended hereto.

i claim:

The herein described process of making combined cast metal and wrought iron yokes for rail-way car draft riggings which consists in providin two cast inembers, each hailing a boss t ron, and two straps of wrought iron, eachstrap being first offset at the middle thereof. and then doubled upon itself lib provide an elongated recess at the belid to. receive and fit. one of the bosses on said castings, then uniting said castings to the wrought iron straps with the bosses in the recesses thus formed and also uniting the Wroug'fht iron straps together. H

Si this 13 day ofMareh, 1914, in the presence at two witnesses. T

. .ALFRF-D @OPQNY.

' (Emotion A1, Jdrmaou,

GEIHE'R.

Wan-m 

